29 Mar
2020
29 Mar
'20
4:56 p.m.
Since I am forced to stay at home more than I would like I though I would
check some more PSUs. One I wanted to check was the H7109-C from one of my
VAXstation 4000 VLC machines. I found a leaked capacitor and some other high
ESR ones, so I will replace those. However, I also noticed a ceramic disk
capacitor that appears to be split all around the edge. Is that a known
failure mode?
Is it definately a capacitor?
I've had some damaged surge arrestors / MOVs / VDRs that look very similar
to ceramic disc capacitors.
Regards,
Peter Coghlan.